Hi! Will be taking CS on July 31st. Booked at the O'Hare Ramada Plaza. Give them a call and tell them you're an examinee. I'm paying $82 plus tax/night. I also asked how far they were from teh test center and the guy told me it's about a 5-minute walk. I didn't ask about the free shuttle since I didn't know about it, hopefully they have it for the afternoon session too!
Anyway, didn't look into the other hotels. I suggest giving them a call to ask. When are you taking your CS?
Good luck everyone! 🙂